Victron Energy Small BMS Battery Management System - BMS400100000

• For use with Victron Smart Lithium Ion Batteries only
• Load disconnect output 
• Charge disconnect output
• System on/off input
• For 12,24,36 and 48 Volt systems
• LED status indicators
• Pre-alarm output gives a minimum of 30 seconds warning of a disconnect

The Load output can be used to control:

A high current relay or contactor.
The remote on/off the input of a Battery Protect, inverter or DC-DC converter, or other loads.
Pre-alarm output

The pre-alarm output is normally free-floating and becomes high in case of the imminent cell under voltage (default 3,1V/cell, adjustable on the battery between 2,85V and 3,15V per cell). Maximum current: 1A (not short circuit protected).

The minimum delay between pre-alarm and load disconnect is 30 seconds.

Charge disconnect output

The Charger output is normally high and becomes free-floating in case of imminent cell overvoltage or over-temperature. Maximum current: 10mA. The Charger output is not suitable to power an inductive load such as a relay coil.

The Charger output can be used to control:

• The remote on/off of a charger
• A Cyrix-Li-Charge relay
• A Cyrix-Li-ct Battery Combiner
• System on/off input

The system on/off input controls both outputs. When off, both outputs will be free floating so that loads and chargers are turned off. The System on/off consists of two terminals: Remote L and Remote H. A remote on/off switch or relay contact can be connected between L and H. Alternatively, terminal H can be switched to battery plus, or terminal L can be switched to battery minus.

Protects 12V, 24V and 48V systems

Operating voltage range: 8 to 70V DC.

LED indicators:

• Load ON (blue): Load output high (cell voltage >2.8V, adjustable on the battery).
• Temp or OVP (red): Charger output free floating (due to cell over temperature (>50°C), cell under temperature (<5 °C) or cell over voltage).

Victron Energy Part Number:  BMS400100000